Details: *The slate stone can withstand burning without fade. *The holder has premium shell of high quality and long service life. *Copper button for outstanding detail appearance. *The slate pen is widely used in all aspects of the material, such as: machinery manufacturing, vehicle manufacturing, shipping factories, steel mills, etc. *Slate pen often used to reduce friction as a result of friction reduction ability. *Because slate can be used to paint white marks on rougher ground, slate is also made into a slate pen that can be written on concrete floors. *Easy to carry, folder pocket and file to whatever your needs are. *Talc pen is the softest mineral known. Its Mohs hardness is 1. You can leave scratches on the talc pen with your fingernails. Generally, the talc pen is white, slightly cyan or green. *The pen cut with talcum block is called talcum pen. Talcum pen is widely used in all kinds of materials, such as machinery manufacturing, vehicle manufacturing, shipyard, iron and steel works, etc. because of its delicacy, it is often used to reduce friction. Because talcum can depict white traces on the rough ground, talcum is also made into talcum pen, which can write on the cement ground. *Color: Silver (As Pictures Show) *Material:Metal + Talc *Holder Size:143mm / 5.63in (Approx.) *Slate Pen Size:125 x 12mm / 4.92 x 0.47in (Approx.) Package Contents: 2 x Types Slate Pen(Built-in refill) 2 x Spare refill Note: The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.